US3552483A - Motor vehicle cooler systems - Google Patents
Motor vehicle cooler systems Download PDFInfo
- Publication number
- US3552483A US3552483A US793096*A US3552483DA US3552483A US 3552483 A US3552483 A US 3552483A US 3552483D A US3552483D A US 3552483DA US 3552483 A US3552483 A US 3552483A
- Authority
- US
- United States
- Prior art keywords
- duct
- fan
- radiator
- flap
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/06—Guiding or ducting air to, or from, ducted fans
Definitions
- ABSTRACT A motor vehicle engine-cooler system comprising a radiator, a fan, a duct surrounding the fan and extending to the radiator, and a pivoted flap mounted to close an opening in a wall of the duct.
- the flap pivots to open the opening against a biasing force which normally urges the flap to the position in which it closes the opening.
- a motor vehicle engine-cooler system comprises'a radiator, a fan,'a duet to direct air from the radiator to the fan, and a pressure-sensitive device arranged to divert a portion of the air in the ductto bypass the for the flap 27.
- the flap 27 is biased towards the position in which it closes opening 29, this biasing being provided either by the inherent natural resilience of the material, Or example a resilient plastics material, from which the flap 27 is made, or else by the action of gravity.
- spring biasing or a counterweight arrangement may be provided to bias flap 27 to the position in which it closes opening 29.
- biased flap 27 The purpose of biased flap 27 is to divert a portion ofthe air in the duct 25 to bypass fan 21 when the pressure in the duct 25 exceeds the ambient air pressure in the engine compartment by a predetermined amount.
- flap 27 pivotsabout groove 30 against its biasing to allow a portion of the air in duct 25 to bypass the fan 21 and thereby reduce the air pressure in the duct 25 and permit a greater. rate of flow of air through the radiator 14.
- FIG. 1 is aside view of cooler system accordingto the'im vention mounted in the front engine compartment of a motor vehicle;
- FIG. 2 is a plan view ofthe cooler system
- FIG. 3 is a sectional view, to an enlarged scale, taken on the line III-III in FIG. 2.
- I P j v 7 Referring now to FlG. 1 of the drawings,- only the front end of a motor vehicle designated generally by the numeral 10 is shown. Thc-vehicle-IO includes a usual hood or bonnet 11 which closes the engine compartment. The front end of the vehicle is of conventional construction and includes grille 12 and bumper 13. Behind the grille 12, there is located a crossflow type radiator designated generally by the reference numeral 14, the radiator having side tankslS and 16 (FIG. 2) which communicate with each other by way of horizontal flow pipes in portion 17 of the radiator.
- side tankslS and 16 FIG. 2
- the radiator 14 forms part of the engine cooler system, only part of the engine being shown in FIGS. 1 and 2.
- the engine is designated generally by the referencefnumeral 18 and the radiator is connected to the water jacket of the engine by flow and return pipes 19 and 20, respectively.
- the pipe 19 is connected to the bottom of side tank and return pipe 20 is connected to the top of side tank 16.
- a fan 21 is rotatably mounted on the engine 18 and is arranged to'be driven from the crankshaft of the engine by pulley 22, belt 23 and pulley 24 mounted coaxial with fan 21.
- the fan 21 is intended to draw air through radiator 14 so as to cool the latter, but to improve this cooling effect, a duct 25 is provided which forms an enclosed passage between the radiator 14 and fan 21. As shown in FIGS; 1 and 2 wholly surrounds fan 21 and all or substantially all the air drawn through radiator 14 can pass through the duct 25 to fan 21 to be ejected into the engine compartment, during normal running of the vehicle.
- wall 26 of the duct 25 incorporates a pressure-sensitive device for a purpose which will be specified later.
- the pressure-sensitive device comprises a resiliently biased flap 27 which is secured to the When the motor vehicle in which the cooling system is mounted is stationary, the fan is required to draw air through the drawings, cooling is achieved additionally by air being forced by a ram effect through the-radiator in addition to air being drawn by the fan. At certain relatively high speed, it may be that the fan cannot discharge air in to the engine compartment-from the duct sufficiently rapidly to achieve adequate cooling of the liquid coolant and a buildup of air under pressure in the duct between the radiator and the fan may be produced.
- the pressure sensitive device in the form of the biased flap will permit some of this air to bypass the fan when the pressure in the duct exceeds the ambient pressure in the'engine compartment by a predetermined amount. With the flow of bypass air, more cooling air can pass through the radiator and thereby cool the liquid coolant in the cooling system satisfactorily.
- a motor vehicle engine-cooler system comprising a radiator, a fan, a duct to direct air from the radiator to the fan, and a pressure-sensitive device arranged to divert a portion of the air in the duct to bypass the fan whenthe air pressure in the duct exceeds ambient ambient air pressure in the engine compartment by a predetermined amount.
- a motor vehicle engine-cooler system comprising a radiotor, fan, a duct to direct air from the radiator to the fan, and a pressure-sensitive device mounted in a wall of the duct an arranged to divert a portion of the air in the duct to bypass the fan when the air pressure in the duct exceeds the ambient air pressure in the engine compartment by a predetermined amount.
- a motor vehicle engine-cooler system comprising a radiator, a fan operable to draw air through the radiator, a duct extending between the radiator and the fan and surrounding the fan, a flap mounted on a wall of the duct to normally close an opening in the wall, the flap being outwardly movable with respect to the interior of the duct, and means biasing the flap inwardly to a position closing said opening, whereby a predetermined excess pressure within the duct will overcome the biasing means and open the flap soas to permit a portion of the air passing through the radiator. to bypass the fan.
- a motor vehicle engine-cooler system comprising a radiator, a fan, a duct extending between the radiator and the fan and surrounding the fan, a flap mounted on a wall of the duct 1 to normally close an opening in the wall, the flap being made wall 26 by rivets 28 and serves, during normal running ofthe vehicle, to close an opening 29 formed in the wall 26 of the duct 25.
- the flap 27 has a V-groove 30 which affords a pivot
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
A motor vehicle engine-cooler system comprising a radiator, a fan, a duct surrounding the fan and extending to the radiator, and a pivoted flap mounted to close an opening in a wall of the duct. When the air pressure in the duct exceeds the ambient air pressure in the engine compartment by a predetermined amount, the flap pivots to open the opening against a biasing force which normally urges the flap to the position in which it closes the opening.
Description
[54] MOTOR VEHICLE COOLER SYSTEMS United States Patent 1111 3,552,483
72] Inventors Reginald Harry North 50] Field oi'Search 123/4104; Headlngton, Oxford; 236/35, 35.2; 165/32-36, ll Peter Norman Taylor, Luton, England 211 App]. NO. 793,096 1 References Cited [22] Filed Jan. :2, 51969 UNITED STATES PATENTS Patented ,1 1 820,091 8/1931 Reavis 236/352 1 Assignee GQIIePalMPIOPS Corporation 2,495,861 1/1950 Newton 236/11X Detroit, Mich. a corporation of Delaware Primary Examiner-Edward J Michael I 32 1 Priority Jam 25 1968 Attorneys-J. L. Carpenter and R. .I. Outland [33] Great Britain [31] 3981/68 ABSTRACT: A motor vehicle engine-cooler system comprising a radiator, a fan, a duct surrounding the fan and extending to the radiator, and a pivoted flap mounted to close an opening in a wall of the duct. When the air pressure in the duct exceeds the ambient air pressure in the engine compartment by a predetermined amount, the flap pivots to open the opening against a biasing force which normally urges the flap to the position in which it closes the opening.
.PATENTVEDJANSIHYI I 35521483 I SHEET10F2 I /NI/EN 70 R5 Fey/1 74.13 Far/y Worii a! Pefer 7202722027 755%! BY A Home y MOTOR VEHICLE COOLER SYSTEMS This invention relates to motor vehicle engine-cooler systems.
It is known to provide a shroud around an engine-driven fan the shroud extending up .to the radiator of the engine-cooler system (see for example U.S. Pat. No. 1,829,374). The purpose of such shrouds is to provide improved cooling of the coolant in the radiator.
However, with forwardly facing radiators, at higher vehicle speeds, cooling is obtained additionally by ram air passing through the radiator/When a shroud is provided to direct at 4 A motor vehicle engine-cooler system according to the invention comprises'a radiator,a fan,'a duet to direct air from the radiator to the fan, and a pressure-sensitive device arranged to divert a portion of the air in the ductto bypass the for the flap 27. The flap 27 is biased towards the position in which it closes opening 29, this biasing being provided either by the inherent natural resilience of the material, Or example a resilient plastics material, from which the flap 27 is made, or else by the action of gravity. Alternatively, although not shown, spring biasing or a counterweight arrangement may be provided to bias flap 27 to the position in which it closes opening 29.
The purpose of biased flap 27 is to divert a portion ofthe air in the duct 25 to bypass fan 21 when the pressure in the duct 25 exceeds the ambient air pressure in the engine compartment by a predetermined amount. When such a pressure is achieved within the duct 25, flap 27 pivotsabout groove 30 against its biasing to allow a portion of the air in duct 25 to bypass the fan 21 and thereby reduce the air pressure in the duct 25 and permit a greater. rate of flow of air through the radiator 14.
fan when the air pressure in the duct exceeds theambient air x pressure in the engine compartment by a predetermined amount. l f' The scope of the invention'is de'frned by the appended claims; how the invention may be performed is hereinafter particularly described with reference to 'the accompanying drawings, in which: I V
FIG. 1 is aside view of cooler system accordingto the'im vention mounted in the front engine compartment of a motor vehicle;
FIG. 2 is a plan view ofthe cooler system; and
FIG. 3 is a sectional view, to an enlarged scale, taken on the line III-III in FIG. 2. I P j v 7 Referring now to FlG. 1 of the drawings,- only the front end of a motor vehicle designated generally by the numeral 10 is shown. Thc-vehicle-IO includes a usual hood or bonnet 11 which closes the engine compartment. The front end of the vehicle is of conventional construction and includes grille 12 and bumper 13. Behind the grille 12, there is located a crossflow type radiator designated generally by the reference numeral 14, the radiator having side tankslS and 16 (FIG. 2) which communicate with each other by way of horizontal flow pipes in portion 17 of the radiator.
The radiator 14 forms part of the engine cooler system, only part of the engine being shown in FIGS. 1 and 2. The engine is designated generally by the referencefnumeral 18 and the radiator is connected to the water jacket of the engine by flow and return pipes 19 and 20, respectively. The pipe 19 is connected to the bottom of side tank and return pipe 20 is connected to the top of side tank 16. i
A fan 21 is rotatably mounted on the engine 18 and is arranged to'be driven from the crankshaft of the engine by pulley 22, belt 23 and pulley 24 mounted coaxial with fan 21.
The fan 21 is intended to draw air through radiator 14 so as to cool the latter, but to improve this cooling effect, a duct 25 is provided which forms an enclosed passage between the radiator 14 and fan 21. As shown in FIGS; 1 and 2 wholly surrounds fan 21 and all or substantially all the air drawn through radiator 14 can pass through the duct 25 to fan 21 to be ejected into the engine compartment, during normal running of the vehicle.
Turning now to FIGS. 2 and 3 of the drawings, wall 26 of the duct 25 incorporates a pressure-sensitive device for a purpose which will be specified later. The pressure-sensitive device comprises a resiliently biased flap 27 which is secured to the When the motor vehicle in which the cooling system is mounted is stationary, the fan is required to draw air through the drawings, cooling is achieved additionally by air being forced by a ram effect through the-radiator in addition to air being drawn by the fan. At certain relatively high speed, it may be that the fan cannot discharge air in to the engine compartment-from the duct sufficiently rapidly to achieve adequate cooling of the liquid coolant and a buildup of air under pressure in the duct between the radiator and the fan may be produced. However, the pressure sensitive device in the form of the biased flap will permit some of this air to bypass the fan when the pressure in the duct exceeds the ambient pressure in the'engine compartment by a predetermined amount. With the flow of bypass air, more cooling air can pass through the radiator and thereby cool the liquid coolant in the cooling system satisfactorily.
We claim:
1. A motor vehicle engine-cooler system comprising a radiator, a fan, a duct to direct air from the radiator to the fan, and a pressure-sensitive device arranged to divert a portion of the air in the duct to bypass the fan whenthe air pressure in the duct exceeds ambient ambient air pressure in the engine compartment by a predetermined amount.
2. A motor vehicle engine-cooler system comprising a radiotor, fan, a duct to direct air from the radiator to the fan, and a pressure-sensitive device mounted in a wall of the duct an arranged to divert a portion of the air in the duct to bypass the fan when the air pressure in the duct exceeds the ambient air pressure in the engine compartment by a predetermined amount.
3. A motor vehicle engine-cooler system comprising a radiator, a fan operable to draw air through the radiator, a duct extending between the radiator and the fan and surrounding the fan, a flap mounted on a wall of the duct to normally close an opening in the wall, the flap being outwardly movable with respect to the interior of the duct, and means biasing the flap inwardly to a position closing said opening, whereby a predetermined excess pressure within the duct will overcome the biasing means and open the flap soas to permit a portion of the air passing through the radiator. to bypass the fan.
4. A motor vehicle engine-cooler system comprising a radiator, a fan, a duct extending between the radiator and the fan and surrounding the fan, a flap mounted on a wall of the duct 1 to normally close an opening in the wall, the flap being made wall 26 by rivets 28 and serves, during normal running ofthe vehicle, to close an opening 29 formed in the wall 26 of the duct 25. The flap 27 has a V-groove 30 which affords a pivot
Claims (4)
1. A motor vehicle engine-cooler system comprising a radiator, a fan, a duct to direct air from the radiator to the fan, and a pressure-sensitive device arranged to divert a portion of the air in the duct to bypass the fan when the air pressure in the duct exceeds ambient ambient air pressure in the engine compartment by a predetermined amount.
2. A motor vehicle engine-cooler system comprising a radiator, fan, a duct to direct air from the radiator to the fan, and a pressure-sensitive device mounted in a wall of the duct an arranged to divert a portion of the air in the duct to bypass the fan when the air pressure in the duct exceeds the ambient air pressure in the engine compartment by a predetermined amount.
3. A motor vehicle engine-cooler system comprising a radiator, a fan operable to draw air through the radiator, a duct extending between the radiator and the fan and surrounding the fan, a flap mounted on a wall of the duct to normally close an opening in the wall, the flap being outwardly movable with respect to the interior of the duct, and means biasing the flap inwardly to a position closing said opening, whereby a predetermined excess pressure within the duct will overcome the biasing meaNs and open the flap so as to permit a portion of the air passing through the radiator to bypass the fan.
4. A motor vehicle engine-cooler system comprising a radiator, a fan, a duct extending between the radiator and the fan and surrounding the fan, a flap mounted on a wall of the duct to normally close an opening in the wall, the flap being made of resilient plastics material and having a groove about which it is pivotably against the inherent resilient opposition of the flap when the air pressure in the duct exceeds the ambient air pressure in the engine compartment by a predetermined amount.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3981/68A GB1188875A (en) | 1968-01-25 | 1968-01-25 | Motor Vehicle Cooler Systems. |
Publications (1)
Publication Number | Publication Date |
---|---|
US3552483A true US3552483A (en) | 1971-01-05 |
Family
ID=9768548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US793096*A Expired - Lifetime US3552483A (en) | 1968-01-25 | 1969-01-22 | Motor vehicle cooler systems |
Country Status (2)
Country | Link |
---|---|
US (1) | US3552483A (en) |
GB (1) | GB1188875A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3777808A (en) * | 1971-10-23 | 1973-12-11 | Nissan Motor | Cooling arrangement mounted on a motor vehicle |
US3794001A (en) * | 1973-03-02 | 1974-02-26 | Ford Motor Co | Variable tip clearance engine cooling fan shroud |
US3854459A (en) * | 1973-12-28 | 1974-12-17 | Mack Trucks | Fan shroud for an engine cooling system |
US4120271A (en) * | 1975-09-09 | 1978-10-17 | Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Ventilating arrangement for an engine compartment |
US4723594A (en) * | 1984-09-21 | 1988-02-09 | Dr. Ing H.C.F. Porsche Aktiengesellschaft | Radiator arrangement for the front of a motor vehicle |
US5209285A (en) * | 1990-09-24 | 1993-05-11 | General Motors Corporation | Inclined tube radiator |
WO2006012962A2 (en) * | 2004-07-28 | 2006-02-09 | Behr Gmbh & Co. Kg | Cooling system |
US20060113136A1 (en) * | 2004-11-30 | 2006-06-01 | Coot2 Inc. | Off road vehicle apparatus and method |
US20060211364A1 (en) * | 2001-08-01 | 2006-09-21 | Friedrich Brotz | Cooling system for motor vehicles and method for controlling at least one air mass flow through a radiator |
US20080017138A1 (en) * | 2004-05-26 | 2008-01-24 | Behr Gmbh & Co. Kg | Cooling System |
US20140086722A1 (en) * | 2012-09-21 | 2014-03-27 | Robert Bosch Gmbh | Ram air flap system |
US10344663B2 (en) * | 2016-03-30 | 2019-07-09 | Hyundai Motor Company | Control system of flowing air into vehicle engine room and method for the same |
US11192446B2 (en) * | 2015-01-22 | 2021-12-07 | Ford Global Technologies, Llc | Active seal arrangement for use with vehicle condensers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2311843A (en) * | 1996-03-28 | 1997-10-08 | Rover Group | Air flow system for a vehicle heat exchanger |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1820091A (en) * | 1929-07-27 | 1931-08-25 | Westinghouse Electric & Mfg Co | Engine cooling |
US2495861A (en) * | 1945-04-18 | 1950-01-31 | Honeywell Regulator Co | All year conditioning apparatus |
-
1968
- 1968-01-25 GB GB3981/68A patent/GB1188875A/en not_active Expired
-
1969
- 1969-01-22 US US793096*A patent/US3552483A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1820091A (en) * | 1929-07-27 | 1931-08-25 | Westinghouse Electric & Mfg Co | Engine cooling |
US2495861A (en) * | 1945-04-18 | 1950-01-31 | Honeywell Regulator Co | All year conditioning apparatus |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3777808A (en) * | 1971-10-23 | 1973-12-11 | Nissan Motor | Cooling arrangement mounted on a motor vehicle |
US3794001A (en) * | 1973-03-02 | 1974-02-26 | Ford Motor Co | Variable tip clearance engine cooling fan shroud |
US3854459A (en) * | 1973-12-28 | 1974-12-17 | Mack Trucks | Fan shroud for an engine cooling system |
US4120271A (en) * | 1975-09-09 | 1978-10-17 | Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Ventilating arrangement for an engine compartment |
US4723594A (en) * | 1984-09-21 | 1988-02-09 | Dr. Ing H.C.F. Porsche Aktiengesellschaft | Radiator arrangement for the front of a motor vehicle |
US5209285A (en) * | 1990-09-24 | 1993-05-11 | General Motors Corporation | Inclined tube radiator |
US20060211364A1 (en) * | 2001-08-01 | 2006-09-21 | Friedrich Brotz | Cooling system for motor vehicles and method for controlling at least one air mass flow through a radiator |
US20080017138A1 (en) * | 2004-05-26 | 2008-01-24 | Behr Gmbh & Co. Kg | Cooling System |
WO2006012962A3 (en) * | 2004-07-28 | 2006-08-10 | Behr Gmbh & Co Kg | Cooling system |
WO2006012962A2 (en) * | 2004-07-28 | 2006-02-09 | Behr Gmbh & Co. Kg | Cooling system |
US20060113136A1 (en) * | 2004-11-30 | 2006-06-01 | Coot2 Inc. | Off road vehicle apparatus and method |
US20140086722A1 (en) * | 2012-09-21 | 2014-03-27 | Robert Bosch Gmbh | Ram air flap system |
US11192446B2 (en) * | 2015-01-22 | 2021-12-07 | Ford Global Technologies, Llc | Active seal arrangement for use with vehicle condensers |
US10344663B2 (en) * | 2016-03-30 | 2019-07-09 | Hyundai Motor Company | Control system of flowing air into vehicle engine room and method for the same |
Also Published As
Publication number | Publication date |
---|---|
GB1188875A (en) | 1970-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3552483A (en) | Motor vehicle cooler systems | |
US3777808A (en) | Cooling arrangement mounted on a motor vehicle | |
US4249626A (en) | Liquid cooling system | |
FR2445239A1 (en) | AIR SUPPLY DEVICE TO THE COOLING SYSTEM AND TO THE MOTOR OF AN AUTOMOTIVE AGRICULTURAL MACHINE | |
GB1454636A (en) | Vehicle having a cooling apparatus | |
CA2055964A1 (en) | Cooling system for a water cooled internal combustion engine for vehicle having an air conditioning apparatus | |
JPS62502814A (en) | engine cooling system | |
US3635285A (en) | Cooling fan | |
US4969421A (en) | Cooling device for an internal combustion engine | |
US3166052A (en) | Thermo-shutter | |
US2333818A (en) | Heating system | |
US2162526A (en) | Regulatable radiator ventilation for motor vehicles | |
GB552153A (en) | Improvements relating to motor-vehicles | |
ES273314A1 (en) | Cooling system of rear-engined vehicles | |
GB1361188A (en) | Heating and ventilating apparatus | |
GB770647A (en) | Improvements relating to air inlets in self-propelled vehicles | |
US3061277A (en) | Air conditioner blower control | |
US4917201A (en) | Motor vehicle | |
US1334811A (en) | Wind-deflector for automobiles | |
US4726326A (en) | Drag reducing cooling system for a vehicle | |
US2674175A (en) | Ventilating system for vehicles | |
US2864299A (en) | Vehicle ventilator | |
GB1488257A (en) | Vehicle cooling installations | |
ES349150A1 (en) | Engine cooling arrangements | |
GB1017885A (en) | Motor vehicle engine cooling systems |